Land Management Forecasts
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
508 FNUS86 KLOX 022313 FWLLOX ECCDA Discussions National Weather Service Los Angeles/Oxnard CA 413 PM PDT Tue Sep 2 2025 ECC029-031715- Los Padres National Forest- Discussion for Vandenberg ECC Dispatch 413 PM PDT Tue Sep 2 2025 ...Discussion from Monterey... There remains a slight (15%) chance for isolated dry thunderstorms across far interior portions of the district through sunset. This poses the risk for lightning and gusty and erratic winds with very little rain, if any, to accompany it. Good to excellent relative humidity recovery is expected tonight for all but the highest terrain of the Central Coast. The cooling and moistening trend will continue through the week with the help of a deepening marine layer that will bring much needed relief. Note : All winds are 20-foot Winds Unless otherwise specified. Thunderstorms imply strong, gusty and erratic winds. ...Discussion from Los Angeles/Oxnard... ...THUNDERSTORMS POSSIBLE THIS AFTERNOON THROUGH THURSDAY, MAINLY FOCUSED ACROSS THE LA/VENTURA MOUNTAINS AND ANTELOPE VALLEY... ..FLOOD WATCH IN EFFECT THROUGH 11 PM WEDNESDAY FOR THE SAN GABRIEL MOUNTAINS, ANTELOPE VALLEY, AND ADJACENT FOOTHILLS INCLUDING BRIDGE FIRE BURN SCAR FOR POTENTIAL FLASH FLOODING AND DEBRIS FLOWS... This afternoon through Thursday, monsoonal shower and thunderstorm activity is possible across the mountains and deserts (especially LA/Ventura counties), with a smaller chance for coasts and valleys. The main risks during this time frame will be the potential for brief heavy rainfall and flooding threats in the mountains and deserts, along with a continued threat of strong downburst/outflow winds and lightning. The highest threat for flash flooding and debris flows will be in the San Gabriel mountains and Antelope Valley where a flood watch is in effect. The potential for strongest outflow winds, locally damaging up to 60 mph will be this afternoon and evening for the mountains and deserts of LA and Ventura Counties. Offshore winds are likely late tonight through Wednesday morning at 8 to 15 mph with gusts of 20 to 30 mph. Theses winds will be stronger for the San Gabriel Mountains, Santa Susana Mountains, and the interior San Luis Obispo County Hills near the Gifford Fire. Hot temperatures will persist into Wednesday, with warmer temperatures potentially occurring near the coast due to weakening onshore flow. The Heat Advisory has been extended through Wednesday for the coasts and valleys of LA and Ventura Counties with all other areas expiring Tuesday evening. Expect high temperatures of 80 to 90 at the beaches, 90 to 100 across the inland coasts, and 98 to 104 across the valleys, foothills, and deserts. Hot temperatures combined with increased instability has yielded deep mixing heights which are peaking between 11,000 and 16,000 feet this afternoon. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 18 and 30 percent for the warmest valleys, lower mountains, and deserts today and tomorrow due to an influx of monsoonal moistures. $$ ECC028-031715- Santa Barbara County excluding Los Padres National Forest- Discussion for Santa Barbara ECC Dispatch 413 PM PDT Tue Sep 2 2025 ...THUNDERSTORMS POSSIBLE THIS AFTERNOON THROUGH THURSDAY, MAINLY FOCUSED ACROSS THE LA/VENTURA MOUNTAINS AND ANTELOPE VALLEY... ..FLOOD WATCH IN EFFECT THROUGH 11 PM WEDNESDAY FOR THE SAN GABRIEL MOUNTAINS, ANTELOPE VALLEY, AND ADJACENT FOOTHILLS INCLUDING BRIDGE FIRE BURN SCAR FOR POTENTIAL FLASH FLOODING AND DEBRIS FLOWS... This afternoon through Thursday, monsoonal shower and thunderstorm activity is possible across the mountains and deserts (especially LA/Ventura counties), with a smaller chance for coasts and valleys. The main risks during this time frame will be the potential for brief heavy rainfall and flooding threats in the mountains and deserts, along with a continued threat of strong downburst/outflow winds and lightning. The highest threat for flash flooding and debris flows will be in the San Gabriel mountains and Antelope Valley where a flood watch is in effect. The potential for strongest outflow winds, locally damaging up to 60 mph will be this afternoon and evening for the mountains and deserts of LA and Ventura Counties. Offshore winds are likely late tonight through Wednesday morning at 8 to 15 mph with gusts of 20 to 30 mph. Theses winds will be stronger for the San Gabriel Mountains, Santa Susana Mountains, and the interior San Luis Obispo County Hills near the Gifford Fire. Hot temperatures will persist into Wednesday, with warmer temperatures potentially occurring near the coast due to weakening onshore flow. The Heat Advisory has been extended through Wednesday for the coasts and valleys of LA and Ventura Counties with all other areas expiring Tuesday evening. Expect high temperatures of 80 to 90 at the beaches, 90 to 100 across the inland coasts, and 98 to 104 across the valleys, foothills, and deserts. Hot temperatures combined with increased instability has yielded deep mixing heights which are peaking between 11,000 and 16,000 feet this afternoon. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 18 and 30 percent for the warmest valleys, lower mountains, and deserts today and tomorrow due to an influx of monsoonal moistures. $$ ECC031-031715- Angeles National Forest- Discussion for Lancaster ECC Dispatch 413 PM PDT Tue Sep 2 2025 ...THUNDERSTORMS POSSIBLE THIS AFTERNOON THROUGH THURSDAY, MAINLY FOCUSED ACROSS THE LA/VENTURA MOUNTAINS AND ANTELOPE VALLEY... ..FLOOD WATCH IN EFFECT THROUGH 11 PM WEDNESDAY FOR THE SAN GABRIEL MOUNTAINS, ANTELOPE VALLEY, AND ADJACENT FOOTHILLS INCLUDING BRIDGE FIRE BURN SCAR FOR POTENTIAL FLASH FLOODING AND DEBRIS FLOWS... This afternoon through Thursday, monsoonal shower and thunderstorm activity is possible across the mountains and deserts (especially LA/Ventura counties), with a smaller chance for coasts and valleys. The main risks during this time frame will be the potential for brief heavy rainfall and flooding threats in the mountains and deserts, along with a continued threat of strong downburst/outflow winds and lightning. The highest threat for flash flooding and debris flows will be in the San Gabriel mountains and Antelope Valley where a flood watch is in effect. The potential for strongest outflow winds, locally damaging up to 60 mph will be this afternoon and evening for the mountains and deserts of LA and Ventura Counties. Offshore winds are likely late tonight through Wednesday morning at 8 to 15 mph with gusts of 20 to 30 mph. Theses winds will be stronger for the San Gabriel Mountains, Santa Susana Mountains, and the interior San Luis Obispo County Hills near the Gifford Fire. Hot temperatures will persist into Wednesday, with warmer temperatures potentially occurring near the coast due to weakening onshore flow. The Heat Advisory has been extended through Wednesday for the coasts and valleys of LA and Ventura Counties with all other areas expiring Tuesday evening. Expect high temperatures of 80 to 90 at the beaches, 90 to 100 across the inland coasts, and 98 to 104 across the valleys, foothills, and deserts. Hot temperatures combined with increased instability has yielded deep mixing heights which are peaking between 11,000 and 16,000 feet this afternoon. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 18 and 30 percent for the warmest valleys, lower mountains, and deserts today and tomorrow due to an influx of monsoonal moistures. $$ ECC024-031715- San Luis Obispo County- Discussion for San Luis Obispo ECC Dispatch 413 PM PDT Tue Sep 2 2025 ...THUNDERSTORMS POSSIBLE THIS AFTERNOON THROUGH THURSDAY, MAINLY FOCUSED ACROSS THE LA/VENTURA MOUNTAINS AND ANTELOPE VALLEY... ..FLOOD WATCH IN EFFECT THROUGH 11 PM WEDNESDAY FOR THE SAN GABRIEL MOUNTAINS, ANTELOPE VALLEY, AND ADJACENT FOOTHILLS INCLUDING BRIDGE FIRE BURN SCAR FOR POTENTIAL FLASH FLOODING AND DEBRIS FLOWS... This afternoon through Thursday, monsoonal shower and thunderstorm activity is possible across the mountains and deserts (especially LA/Ventura counties), with a smaller chance for coasts and valleys. The main risks during this time frame will be the potential for brief heavy rainfall and flooding threats in the mountains and deserts, along with a continued threat of strong downburst/outflow winds and lightning. The highest threat for flash flooding and debris flows will be in the San Gabriel mountains and Antelope Valley where a flood watch is in effect. The potential for strongest outflow winds, locally damaging up to 60 mph will be this afternoon and evening for the mountains and deserts of LA and Ventura Counties. Offshore winds are likely late tonight through Wednesday morning at 8 to 15 mph with gusts of 20 to 30 mph. Theses winds will be stronger for the San Gabriel Mountains, Santa Susana Mountains, and the interior San Luis Obispo County Hills near the Gifford Fire. Hot temperatures will persist into Wednesday, with warmer temperatures potentially occurring near the coast due to weakening onshore flow. The Heat Advisory has been extended through Wednesday for the coasts and valleys of LA and Ventura Counties with all other areas expiring Tuesday evening. Expect high temperatures of 80 to 90 at the beaches, 90 to 100 across the inland coasts, and 98 to 104 across the valleys, foothills, and deserts. Hot temperatures combined with increased instability has yielded deep mixing heights which are peaking between 11,000 and 16,000 feet this afternoon. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 18 and 30 percent for the warmest valleys, lower mountains, and deserts today and tomorrow due to an influx of monsoonal moistures. $$ ECC032-031715- Ventura County excluding Los Padres National Forest- Discussion for Ventura ECC Dispatch 413 PM PDT Tue Sep 2 2025 ...THUNDERSTORMS POSSIBLE THIS AFTERNOON THROUGH THURSDAY, MAINLY FOCUSED ACROSS THE LA/VENTURA MOUNTAINS AND ANTELOPE VALLEY... ..FLOOD WATCH IN EFFECT THROUGH 11 PM WEDNESDAY FOR THE SAN GABRIEL MOUNTAINS, ANTELOPE VALLEY, AND ADJACENT FOOTHILLS INCLUDING BRIDGE FIRE BURN SCAR FOR POTENTIAL FLASH FLOODING AND DEBRIS FLOWS... This afternoon through Thursday, monsoonal shower and thunderstorm activity is possible across the mountains and deserts (especially LA/Ventura counties), with a smaller chance for coasts and valleys. The main risks during this time frame will be the potential for brief heavy rainfall and flooding threats in the mountains and deserts, along with a continued threat of strong downburst/outflow winds and lightning. The highest threat for flash flooding and debris flows will be in the San Gabriel mountains and Antelope Valley where a flood watch is in effect. The potential for strongest outflow winds, locally damaging up to 60 mph will be this afternoon and evening for the mountains and deserts of LA and Ventura Counties. Offshore winds are likely late tonight through Wednesday morning at 8 to 15 mph with gusts of 20 to 30 mph. Theses winds will be stronger for the San Gabriel Mountains, Santa Susana Mountains, and the interior San Luis Obispo County Hills near the Gifford Fire. Hot temperatures will persist into Wednesday, with warmer temperatures potentially occurring near the coast due to weakening onshore flow. The Heat Advisory has been extended through Wednesday for the coasts and valleys of LA and Ventura Counties with all other areas expiring Tuesday evening. Expect high temperatures of 80 to 90 at the beaches, 90 to 100 across the inland coasts, and 98 to 104 across the valleys, foothills, and deserts. Hot temperatures combined with increased instability has yielded deep mixing heights which are peaking between 11,000 and 16,000 feet this afternoon. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 18 and 30 percent for the warmest valleys, lower mountains, and deserts today and tomorrow due to an influx of monsoonal moistures. $$ ECC030-031715- Los Angeles County excluding Angeles National Forest- Discussion for Los Angeles ECC Dispatch 413 PM PDT Tue Sep 2 2025 ...THUNDERSTORMS POSSIBLE THIS AFTERNOON THROUGH THURSDAY, MAINLY FOCUSED ACROSS THE LA/VENTURA MOUNTAINS AND ANTELOPE VALLEY... ..FLOOD WATCH IN EFFECT THROUGH 11 PM WEDNESDAY FOR THE SAN GABRIEL MOUNTAINS, ANTELOPE VALLEY, AND ADJACENT FOOTHILLS INCLUDING BRIDGE FIRE BURN SCAR FOR POTENTIAL FLASH FLOODING AND DEBRIS FLOWS... This afternoon through Thursday, monsoonal shower and thunderstorm activity is possible across the mountains and deserts (especially LA/Ventura counties), with a smaller chance for coasts and valleys. The main risks during this time frame will be the potential for brief heavy rainfall and flooding threats in the mountains and deserts, along with a continued threat of strong downburst/outflow winds and lightning. The highest threat for flash flooding and debris flows will be in the San Gabriel mountains and Antelope Valley where a flood watch is in effect. The potential for strongest outflow winds, locally damaging up to 60 mph will be this afternoon and evening for the mountains and deserts of LA and Ventura Counties. Offshore winds are likely late tonight through Wednesday morning at 8 to 15 mph with gusts of 20 to 30 mph. Theses winds will be stronger for the San Gabriel Mountains, Santa Susana Mountains, and the interior San Luis Obispo County Hills near the Gifford Fire. Hot temperatures will persist into Wednesday, with warmer temperatures potentially occurring near the coast due to weakening onshore flow. The Heat Advisory has been extended through Wednesday for the coasts and valleys of LA and Ventura Counties with all other areas expiring Tuesday evening. Expect high temperatures of 80 to 90 at the beaches, 90 to 100 across the inland coasts, and 98 to 104 across the valleys, foothills, and deserts. Hot temperatures combined with increased instability has yielded deep mixing heights which are peaking between 11,000 and 16,000 feet this afternoon. As a result, there is an elevated risk for large plume dominated fires across the interior. Humidities between 18 and 30 percent for the warmest valleys, lower mountains, and deserts today and tomorrow due to an influx of monsoonal moistures. $$